Saw handle



R. W. SCOTT.

sAw HANDLE.

APPLICATION FILED AUG.24. 1921.

1,420,291.r PatenteaJupe 20,1922.

erases earner series, 'I

ROBERT 'W1 SCOTT, OF SPOKANE, WASHINGTON.

`SAV HANDLE.

Application filed August 24, 1921. Serial No. 495,049. I

To all who/m, may concern:

Be `it known that l, lonnnr lW. Scorr, a subject of the King of Great ifritain (iirst papers being taken out to become a citizen of the United States), residing at Spokane, in Spokane County, and State of l/Yashington, have invented certain new and useful Improvements in Saw landles, of which the following is specification.

The invention has reference to saw handles and particularly to a detachable-handle for a cross-cut saw.

lThe main purpose and object of the invention is to provide a quick-detach able saw handle of particular advantage in felling trees; the handle being quickly removable from the saw to permit the rapid witodrawal ofthe blade from the cut to prevent the injury or pinching of the latter by the falling trunk.

A further object is to provide novel means for attaching the handle to the blade where# by the handle will be held with sufficient firmness to withstand all strains to which it is subjected in the use of the saw.

`W ith the above and other objects in view, the invention consists, generally, in the details of construction, combination andarrangement of parts as are hereinafter more fully described, reference being had to the accompanying drawings, wherein:

Figure 1 is a side elevation, showing the detachable handle as attached to the end of a saw. y

Figure 2 is a longitudinal vertical section of the handle and saw-end.

Figure 3 is a vertical cross-section of the handle, as taken on line 3-3 of Figure 1, and.

Figure d is a view of a modified form of handle, the construction being slightly altered.

In the construction illustrated, numeral 10 designates an end portion of the cross-cut saw such as used in a timber country and 11 the hole for the bolt 12 of the handle. This bolt is provided at one end with a. springy hook-bearing portion 13 which bears against one flat side of the saw blade as shown, the hook 14: thereof passing through the hole and bearing against the opposite side of the blade, The other end of the bolt has a threaded portion 15 over which the usual wooden handle 16 is inserted, the latter having a recess or pocket in which is housed the bolt-receiving adjusting nut 17. Eneireling the bolt between the end'of the saw blade and the handle is a :locking device rfor'securing); the handle firmly in piace to withstand the Apull and strain incident to the use of the saw. This device includes a guard member (l f o adapted to bear against the .saw blade and grooved, :as indicated at 19 lto receive the end of the blade, the groove serving to keep the vguard firm and rigid during use. The guard is of greater length than Ithe width of the saw so `as `to proj-'ect .beyond lboth sides thereof, providing hand-grip for the sawyer as hereinafter explained. Projecting centrally from the guard opposite the grooved face thereof is a 'hollow barrel 2l adapted to engage barrel 22 of. the yother member of the locking device. Vlhis other member is provided with a handle socket 23 integral with barrel 22 and having grooves in the outer face, crossing at right angles to each other to provide socket grooves for handlel, By having the grooves crossing aty right angles it will be seen that handle 16 may be positioned at right angle to the saw blade, when desired, byl merely transferring it from one groove to the other. Barrels '21 and v.22 haveV complementary quarter-sections cut out, as shown at 24, to allow each barrel to have an inter'tti'ng sliding engagement with the other, vthe quarter seetionof one barrel fitting into the cut-outs between the quarter sections of the other barrel as shown to advantage in Figures 2 and 8. Housed within the interiitting` barrels and coiled about the bolt 12 is an expansion spring 25 which serves to keep the barrel spread apart with a certain amount of clearance between the inner end of each quarter section and the terminal of the slot in which it slides, thereby permitting the barrels to `be drawn together suiiciently to release the yhandle' when necessary. spring also serves to keep guard 18 firmly pressed against the saw blade and the socket head 23 snugly against the handle, the pressure exerted outwardly against the handle tending to draw the back or shoulder edge of the bolt hook 14 tight against the rear wall of the bolt-hole while at the same pressure is exerted in the opposite direction against guard 18; the handle being thereby clamped securely to the blade and in no wise disturbed or loosened by any pull exerted on handle 16 during the usual or ordinary operation of the saw. Mounted on the barrel-portions of the handle lockis a rubber This y or leather sleeve 26 which serves as a guard for covering the slots or cut-outs and hiding the spring; the ends of the guard being spaced inwardly from both the guard and socketmembers to allow for the contraction or' the members when releasing the handle.

Figure 4L shows a slighthv altered construction of the guard and handle socket in that the barrel of one member telescopes over the barrel of the other member, a pin 27 being carried by the inside barrel to operate in a slot 28 ot the outside barrel to prevent a turning movement of the handle with respect to the guard.

In connection with the use and operation of the invention, it may be mentioned by way otpreface, that, in felling a tree; to prevent pinching of the blade it is necessary to rapidly remove the same from the cut at the time the tree starts to tall. frs soon as the heel or back edge of the blade has buried itself in the trunk to the extent of several inches or more, a wedge is driven into the cut tc throw the tree slightly away and enlarge the cut to allow for clearance. As the tree starts to lall this wedge is tightly driven into the wood and the only way to pull the saw out is to remove the handle from one end and pull the saw through. With the. present day devices or saw handles time is required to unloosen and detach the handle. With the detachable handle herein provided for, however, the detachment can be almost instantaneously effected. As the tree is about to fall, one of the sawyers may grasp the projected ends or handle-grips 2O oic the guard member and draw the latter in toward the handle 16, compressing spring 25 and releasing the guard from the edge of the saw blade. Upon swinging the handle away to the saw.

from the blade hook lll of the bolt will detach itself and slip through bolt-hole ll, thus entirely releasing the handle and per-- niitting the other sawyer. to pull the blade through the cut. The same application reversed is used to again attach the handle As some saw blades have the bolt-holes at different distances from the end, to make this handle meet those conditions bolt l2 may be turned in nut 16 until the right adjustment is obtained; the threaded end of the bolt being movable in the closed base or socket 2T of the handle, thus leaving a smooth handle free from any obstruction.

Having thus described the invention what I claim is:

l. The combination with a shank having a hooked end to engage an opening in a saw blade, of a pair of telescopic barrels and means for retaining said barrels in longitudinal alinement, said barrels encasing thel shank and an expansion spring within the barrels, a guard on one barrel engaging the saw blade, and a socket member on the other barrel engaging a saw handle.

2. The combination with shank having means for attachment to a saw blade, of a pair or telescopic barrels having coacting means for retaining said bar els in longitudinal alinement, an expansion spring within the barrels and surrounding the shank, a guard on one barrel to engage the saw blade, and a socket member on the other barrel having angular grooves for engagement with a saw handle whereby the handle may be adjusted angularly of the saw blade.

In testimony whereol` l ath); my signature.

ROBERT W. SCOTT. 

